The construction of the church of Saint-Martin d'Ermenonville began in the second half of the 12th century. The building is regularly modified over the course of its history especially in the 15th century where the building enjoys a touch of flamboyant Gothic. The church of Saint Martin is a real stone book in which one perceives many variants of the gothic style (primitive, radiant late and flamboyant). Inside, the church has extremely rich and neat furniture, the site is classified as a historical monument in 1911.